Sprinkler nozzle



June 7, 1932. y A, R, LE MQON 1,862,381

SPRINKLER NOZZLE Filed Feb. 24, 1950 l ,Tal a: M lli! I kh AXEL R. LE ILGON, F CHICAGO, ILLINOS SPRINKLER NOZZLE Application filed February 24, 1930. Serial No. 430,970.

This invention relates to sprinkler nozzles of the general character described in my'application, Serial No. 221,7 33, filed September 24, 1927, and allowed October 6, 1929.

v The main objects of the present invention are to provide for greater efficiency in lawn sprinkling systems as a whole; to provide for minimizing initial cost and operating expense by making a few wide-range nozzles to '1" do the work of many small-range nozzles; to

provide an improved form of nozzle especially adapted for lawn sprinkling and also capable of ready adjustment for a widely vari` able sprinkling range, and for an extraordinarily wide maximum range; to provide such a nozzle adapted to assure a substantially uniform rate of sprinkling throughout the entire area'for any given setting; to provide for distributively throw` t ing a multiplicity of definite and substantially individual streams, as distinct from spray and small spraylike streams; to provide independent discharge apertures of various sizes, each substantially proportionate to the 7* corresponding desired lateral range respectively; to provide a nozzle of the rotary core type having these characteristics; to provide for ready adjustment of the rotary speed of the liquid directing core member; and to pro- ;:c Vide for ready assemblage and replacement of the nozzle and its parts respectively.

My invention is illustrated by the accompanying drawing, in which Figure 1 is a side view of the nozzle as in- 37" stalled and showing its embedded relation to the surface of the lawn.

Fig. 2 is a plan of the nozzle. Fig. 3 is a section on the line 3-3 of Fig. 2. Fig. 4 is an endwise view of the rotor core shown in the axial center of Fig. 3, as viewed from below.

Fig. 5 is a side view of said rotor.

Fig. 6 is a section on the line 6-6 of Fig. 3.

l Fig. 7 is a section taken substantially as in Fig. 3, but showing a modified form of rotor.

Fig. 8 is an axial section of a. form of rotor head construction especially adapted for use in extra large nozzles.

ln the construction shown, the nozzle 1 is screwed to the discharge end of an underground water supply pipe 2, as shown in Fig. 1, the face of the nozzle, as at 3, being flush with the surface of the ground or lawn 4.

The nozzle proper comprises a cylindriform stationary body or frame 5 in combination with a movable hollow core member or rotor 6, disposed coaxially therein. rllhe said frame 5 includes a preferably screw threaded removable interior ring 7 adjacent to its upper end, the upward face 7 of said ring being conoidal to receive the substantially corresponding shaped head 8 of the rotor. The flanged lower side of this ring has set therein a perforated disk 9 to be described.

The rotomotive core 6 comprises mainly a tubular shank 10 extending downward and fitting somewhat loosely in the ring 7, in cornbination with the conoidal head 8, which is provided with a plurality of rows of fluid apertures, including a row or" divergent perforations 14 communicating with the interior of said shank 1() and a peripheral series of grooves, notches, or flutings 15 on the downward conoidal face of the head. These grooves 15 provide discharge passageways for fluid escaping between the inner edge of ring 7 and the rotor shank 10.

The said perforations 14 or grooves 15, or both, or any appropriate part thereof, or any equivalent passageways, are inclined codirectionally to impart rotary movement to the core, by reaction of the iuid, when the nozzle is in use.

The plate or disk 9 is circular and fiat, as shown by Figs. 3 and 6. lt has a large central hole 2O to receive the rotor shank 10 with mere operating clearance to center' the rotor. It is set snugly in and is held rigidly by the downward flange 22 of ring 7, and is spaced downwardly from the main body of said ring to provide a chamber 24. This chamber communicates with the main lower chamber 25 by a plurality of holes 26 and with the head passageways 14 and 15 by the annular chamber 27 between shank 10 and the inner edge of ring 7.

The rotor 6 is held downward against upward escape by means of a` threaded ring or nut member 30 on the lower end of shank 10. This accommodates more or less upward movement of the rotor, according to nut adjustment, for varying the amount of clearance between the head 8 an the ring face 7. This clearance supplements in effect the How capacity of the grooves l5.

It is to be understood that the size of holes 14 may vary widely, and variance is desirable in order to diversify the character and throwing range of the spray or streams. The same is true as to the size or sizes of the grooves l5. See Figs. 3 and 4.

When the nozzle is used, the holes 14 project various sized streams to a great distance, much farther than ordinary streamlets or spray would carry; and the grooves l5 and supplemental clearance space provide for small streams and spray for the middle ground and for the space adjacent to the nozzle respectively.

Referring to Fig. 7, this view shows the same form of frame or shell as in Fig. 3, butl the rotor is of modified form. Here the head 36 and shank 37 are solid and the water escapes solely between the ring and core. rl`he head is fiuted slantwise as at 40 and as in Fig. 4 to assure rotation.

Adjusting the nut 30 downwardly increases the fluid capacity and vice versa.

Referring to Fig. 8, the operative principle of the modified rotor here shown is like that of rotor 6. But with a view to effecting greater range efficiency and for manufacturing convenience in making large sizes, the head 46 is iirst made in one piece with holes to receive the stein pipe 47 and the several discharge stream nozzle units 48 communieating with said pipe. The units 48 are outwardly cylindrical to fit in their respective head drillings, and they are conoidal interiorly to concentrate the flow at the discharge end, whereby to accelerate flow speed and so assure a maximum effective range for the nozzle. The underside of head 46 has inclined reaction grooves 50 similar to those on rotor 6.

I find that with my wide range nozzles herein described, I can make one new style nozzle do the work of about nine ordinary lawn sprinklers. I set the new nozzles about sixty to seventy feet apartinstead of about twenty feet or less, as necessary for the usual nozzles.

Although but a few specific illustrations of this invention are herein shown and described, it is to be understood that numerous details may be altered or omitted without departing from the spirit of the invention as defined by the following claims.

I claim:

l. A sprinkler nozzle comprising a cylindriform tubular frame having its back end interiorly threaded for connection to a source of liquid and having in its front end a removable threaded conoidal faced ring, in combination with a rotor having a shank litting loosely in said ring7 and a conoidal head fitting in the corresponding part of said ring, and means to secure said rotor in place, said head having inclined passageways for direction of and rotomotive reaction of the discharged fluid.

2. A sprinkler nozzle comprising a fluid conducting hollow frame for fixed mounting and a rotary hollow fluid conducting core member therein, having a shank held loosely and rotatably in said frame and a conoidal head on said shank, said head having upwardly divergent fiuid discharge apertures fed through said shank and inclined flutings on its outer face to conduct fluid reactively and conoidally past the head to impart rotary movement thereto for playing the streams circularly.

A sprinkler nozzle comprising a rotary multiple stream cireeting member having a plurality of concentric rows of outlet apertures, said member having a tubular shank and a conoidal head containing divergent passageways fed through said shank and said head having codirectional inclined flutings on its conoidal face.

4. A nozzle comprising an axially hollow frame having a concave conoidal discharge part in combination with a rotor core having a head to fit substantially in said part and a tubular shank therefor to support said head, and adjustable holding means to vary the setting of said core longitudinally, said head having main discharge apertures disposed divergently therein, and also having surface discharge grooves inclined codirectionally to cause rotation of the core in use, and speed being adjustable by moving the core foi'- wardly to increase the proportionate discharge through the face grooves.

5. A nozzle comprising an axially hollow frame having a concave conoidal discharge part in combination with a rotor core having a head to fit substantially in said part and a tubular shank therefor to support said head, said frame having a disk set transversely thereof in its back part, said disk being centrally perforated to receive s 'l shank `and also being eccentrically apertured to transmit fluid, and said shank hay-fing a threaded nut to secure the rotor in adjustaole position axially thereof.

Signed at Chicago this 20th day of February, 1930.

AXEL ll. LE li'fGOll. 

